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The configuration must follow the schema described in json schema config file.

Clients are indexed by their client type name; please note that the default client is only used when there's no specified client in the request and the default client is configured. If a wrong/malicious/misconfigured client is being used in the request then the response will be immediately rejected with Unauthorized (401) status code.

Example of configuration

  "clients": {
    "cms": {
      "auth0Url": "my auth0 url",
      "clientId": "{{AUTH0_CLIENT_ID}}",
      "clientSecret": "{{AUTH0_CLIENT_SECRET}}",
      "redirectUrl": "https://my-host/web-login/callback",
      "scopes": [
      "audience": "",
      "supportedConnections": [],
      "defaultConnection": ""
  "defaultClient": "",
  "managementClient": {
    "auth0Url": "my auth0 url",
    "clientId": "{{AUTH0_MANAGEMENT_CLIENT_ID}}",
    "clientSecret": "{{AUTH0_MANAGEMENT_CLIENT_SECRET}}",
    "supportedConnections": [],
    "defaultCreateUserConnection": ""
  "customClaimsNamespaces": [

Auth0 Connection integration

Auth0 uses connections as a pool of identity sources where users are stored. In order to integrate with specific connections in Auth0 domain, the service configuration enables the developer to specify a set of supportedConnections for each client (including the ManagementClient); the list of connections is used to filter or reject connections provided in requests towards the service.

All clients (except the ManagementClient which uses a different property, see below) can be configured to use a defaultConnection, please note that if you do not provide a defaultConnection then you'll have to specify a connection when contacting the /authorize and /oauth/token APIs. If you instead provide the defaultConnection it will be used when no connection is set in the original request.

Keep in mind that the defaultConnection must be specified in the supportedConnections list, otherwise an error is returned at service startup.

The ManagementClient uses an extra configuration defaultCreateUserConnection that is used during user creation. Please note that a connection is required by this endpoint thus the need to enforce a default one if none is provided. As for the defaultConnection in normal clients, keep in mind that the configured defaultCreateUserConnection must be specified in the supportedConnections list, otherwise an error is returned at service startup.

The endpoints that support connections are the following:

  • GET /authorize: will select connection based on request, using specified default connection if none is provided;
  • POST /oauth/token: in a similar fashion to /authorize will use provided connection if supported otherwise it uses the default configured.
  • GET /users: will filter connections in original request based on ManagementClient supported connection, if none is provided all supported connections are used by default;
  • POST /user/:userId: will use default connection from ManagementClient if no connection is provided, otherwise will use the one provided (if supported).

Supported redis modes

This service handles the session saving into redis either the session id or the access token.

You must configure it through these env variables:

  • REDIS_HOSTS [required]: comma separated list of redis hosts. If port is not specified, use default port (6379);
  • REDIS_MODE [required] (default: normal): available values are normal or sentinel;
  • REDIS_MASTER_NAME [optional]: if redis mode is sentinel, then the value is used as the master name; if redis mode is normal, this variable is ignored.

Session created could have a scope, settable through SESSION_SCOPE env variable.

Sync user metadata into mongodb

Usign this service, users are saved only in auth0 database. If links to user id are required in a project, you could sync auth0 user metadata in a mongodb collection.

This feature is disabled by default, but you could activate it by adding all these envs:

  • MONGO_DB_URL [optional]: mongodb url that needs to be connected to your mongo instance;
  • USERS_DATABASE_NAME [optional]: mongodb database name where you want to save user metadata;
  • USERS_COLLECTION_NAME [optional]: mongodb collection name where you want to save user metadata;
  • USERS_PROPERTIES_TO_SAVE [optional]: comma separated list of properties to mantain in sync.